The IO Trooper skin is an Epic Fortnite outfit. IO Trooper was available via the Item Shop for 800 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite IO Trooper Skin Details
Elite commando from the Imagined Order.
Fortnite IO Trooper Skin PNG Images
Here is the PNG images of IO Trooper below!